Machine for pressing plastic material



5 Sheets-Sheet 1.

(No Model.)

Patented Dec; 21, 1886..

Inventor: m

(No Model.)

5 Sheets-Sheet 2. O. S. LONG.

MACHINE FOR PRBSSING PLASTIC MATERIAL. No. 354,604.

' Patented Dec. 21, 1886.

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G. 8'. LONG.

MACHINE FOR PRESSING PLASTIC MATERIAL.

No. 354,604. Paterited Deo. 21, 1886.

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(No Model.)

'O. S.'LONG. I MACHINE FOR PRESSING PLASTIC MATERIAL. No. 354,604.

Patented Dec. 21, 1886.

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(No Model.) 5 SheetsSheet 5.

G. S. LONG.

MACHINE FOR PREssING PLASTIC MATERIAL. No. 354,604. Patented Dec. 21,1886.

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, having movable sides and end sections which press and confine thematerial during such rurnn STATES.

CHARLES s. LONG, or

HINGKLEY, ILLINOIS.

MACHINE FOR PRESSING PLASTIC MATERIAL.

SPECIFICATION forming part of Letters Patent No..354,604, dated December21, 1886.

Application filed July 3, 1886. Serial No. 207,054. (No model.)

To aZZ whom it may concern:

Be it known that 1, CHARLES S. LONG, a citizen of the United States,residing at Hinckley, in the county of De Kalb and State of Illinois,have invented certain new and useful Improvements in Machines forPressing Plastic Material into Form; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to improvements in machines for pressing plasticsubstances into form.

The object of my invention is to provide a machine which will press anasphaltic or other concrete base around the bottom of a fencepost orother like object, by which the same may be firmly anchored in theground.

My invention consists in a machine for pressing asphalt or otherconcrete, or clay or other material, onto the end of a fence-post orother article which is to be placed in the ground, so as to'form a baseor anchor by which the same is held securely in position.

My invention consists, further, of a mold pressure, said sections beingretracted after the pressure, so as to allow the article to be removedfrom the mold.

My invention consists, further, 'in certain devices, which will be fullydescribed hereinafter, by which the fence-post is automatically placedin the nold-cavity, and held securely in such position until thematerial has been pressed around the same.

My invention consists, further, in certain details of construction,which will be fully described hereinafter, and pointed out in theclaims.

. Referring to the drawings, Figure 1 is a vertical transverse sectionalview of the machine, showing the side plungers drawn back and thematerial entering the cavity between said plungers. Fig. 2 is the sameview as Fig. 1, with the plungers forward and in the act of compressingthe material onto the metallic or other bar. Fig. 3 is a verticallongitudinal sectional view showing the materialbefore the pressure hasbeen applied. Fig. 4 is alsofla vertical longitudinal sectional view ofthe machine after the pressure has been applied. Fig. 5 is I 011 theline w m of Figs. 7 and 9. Fig. 11 isa front view of one of thegearwheels, which communicates motion to the shaft which operates theside plungers. Fig. 12 is an end or front view of a pinion-wheel whichoperates the gear-wheel shown in Fig. 11. Figs. 13 and 14 are side andplan views of the gear-wheels which operate the end plungers, as willappear more fully hereinafter. Figs. 15 and 16 are top and side views ofthe pitman which connects the end plunger with the operatinglever. Figs.17, 18, and 19 are top or plan views of the devices which feed the metalbars into the molds. Fig. 20 is a side view of the devices shown inFigs. 17, 18, and 19. Fig. 21 is a plan view of a detached portion ofthe devices shown in Figs. 17, 18,19, and 20. Fig. 22 is a modificationof the base and post, in which the base is shown with a cavity therein.

A indicates the frame of the machine,which may be cast in one piece, orin sections, as may be desired, and bolted together, so as to form asolid and rigid support for the operating parts of the machine. Theupper portion of the frame is provided with a cavity or hollow 0 O aresliding blocks, adapted to close the rear end of the cavity 1, so as toform one end of the mold-box, said blocks being formed with suitablerecesses in their face, which will permit the metallic or other bar toenter the mold-cavity and to hold the same in a central position whilethe base is being pressed on the bar. Therear ends of the sliding blocks0 G are provided with extensions 0 c, on

designed to close the rear end of the moldcavity, and also to compressthe article.

D is a cross-head, provided with flanges or side extensions, d d,adapting it to slide in guideways formed in the side walls of the cavity1, said cross-head being adapted to impinge on the rear end of theplunger D, and force the same forward at the proper time to compress thearticle. Y x

D is a spur-gear mounted in suitable bearings in the cross D and adaptedto mesh with a similar spur wheel, D", mounted on the shaft D, saidspur-wheel D being hung eccentric to its center on said shaft, as shownin Figs. 3 and 4, so that when the wider portion of this pinion-wheelcomes around to the pinion-wheel D it will be pushed forward, carryingwith it the cross-head D and plunger D, and in this way effect thecompression of the end portion of the article.

As before stated, D is a shaft mounted in suitable bearings, one end ofwhich is provided with a beveled gear-wheel, D, which meshes with amutilated beveled spur-wheel secured on the shaft E, said shaftE beingalso provided with the sprocket-wheel e and the grooved eccentric disksB and O, which operate the side plunger B, and also one of the slidingblocks 0, heretofore described.

E is a shaft mounted in suitable bearings on the other side of themachine, on which is also secured a sprocket-wheel, e, thesprocketwheels on the shaftslE and E being connected by a suitablesprocket-chain, (not shown,) by which motion is imparted from the shaftE to the shaft E. The shaft E is also provided with the eccentricgrooved disks 13 and G, which operate the side plunger B, and also theother sliding block 0.

E is'a spur-wheel secured to the front end of the shaft E, which mesheswith a pinionwheel, E, mounted on the main driving-shaft E said mainshaft E being also provided with a balance or fly whee], E and bandwheelE, through which power is imparted to the machine from any suitablesource.

F is a crank-arm secured to the end of the shaft F, said shaft beingmounted in suitable brackets secured to the side of the machine, asshown'in Fig. 6.

F is a beveled gear-wheel secured to the other end of the shaft F, whichmeshes with a similar wheel, F secured to the lower end of the verticalshaft F, said shaft being also mounted in suitable bearings or bracketssecured to the side of the machine.

F is a beveled gear-wheel secured to the upper end of the shaft F, andis adapted to mesh with the mutilated beveled gear-wheel F, se-

cured to the shaft E.

fis a bar or pitman, one end of which is secured to the crank-arm F, theother end of said bar being provided with a slot, f adapted to engage apin on the vertical bar f, so that a certain period of rest will begiven to the bar f between its forward and backward movement. The barfis pivoted at its lower end to the base of the machine, as shown at J,and adapted to be moved back and forth by the rotation of the crank-armF on the shaft F, while the upper end of the bar f is connected to theplunger D by means of the double bar f which admits of the rotation ofthe pinion-wheels D and D between the sides or members of the double barf. The office or function of this rocking bar is to move the plunger Dforward, so as to push the newlyformed article out of the mold after theside plunger-s have been drawn back and the slides O removed from theend of the mold.

There is an opening formed in the top of the machine, above which islocated the feed'hopper G, said hopper being designed to hold the 7material to be compressed. The bottom of the hopper G is closed by theside" compressionplunger, B, while the article is being pressed; butwhen the pressing has been finished the plunger B is drawn back into theposition shown in Fig. l and the material allowed to fall into themold-cavity between the side plungers.

It will be noticed that the mutilated gearwheels D and F are so arrangedon the shaft E that they impart motion to their respective partsalternately. Thus, when the wheel D has reached its plain or mutilatedportion w, the plunger D has been moved forward to compress the end ofthe article, and the side plungers, together with the blocks 0, havebeen moved over simultaneously therewith to form the mold and compressthe material. During this time the pinion-wheel F has been travelingover the mutilated portion :0 of the wheel F and when the toothedportion of the wheel F has been reached the shaft F will be caused torotate and the bar f drawn over and the plunger D thrust forward toeject the base from the mold, after which the plunger D is drawn back tothe position shown in Fig. 3.

H is the article or anchor which has been pressed around the end of themetallic bar h, which may be of any desired shape, but preferably of theshape shown in Figs. 7, 8, 9, and 10.

The base H is made from any suitable plastic material, but preferably ofa composition in which natural asphaltum is the binding material.

I find that natural asphaltum reduced to a fluid condition with crudepetroleum and pulverized limestone or other hard rock give the bestresults, for the reason that it is impervious to moisture,.and is notaffected by cold or electricity.

In Fig. 22 I have shown a modified form of base, which is formed with acavity, 00 in its base, and is tapering from the base toward the top, sothat the frost will not heave the base out of position. By making thebase with the cavity 00 I am enabled to make a good and substantial basewith much less material, and the posts and base being much lighter thanif the base were made solid, I am enabled to save considerable in'weightand cost of transportation.

In making the hollow base just described I provide the front end of theplunger D with a cone-shaped ortapering projection, as shown in Fig. 4.

I will now proceed to describe the devices by which the bar or post isfed to the machine until it is clamped and held in the mold by thesliding blocks 0 O in a central position, so that the material whichforms the base will be placed uniformly around said bar.

h is a bar, one end of which is pivoted to the upper side of the bracketor plate h, secured to the side of the machine, the other or outer endof said bar being provided with a jaw, 9, adapted to conform to thewings or flanges of the post h, as shown in Fig. 20. The outer end ofthe bar h is also provided with a projection, g, to which the jaw h ispivoted, said jaw h being operated to clamp the other side of the postby devices which will be hereinafter described. The inner end of the barIt is provided with an upwardly-projecting stud, which is back of thepivot-point, and on which is secured a friction-wheehg", adapted toengage a cam-groove, 9 formed in the periphery of the wheel h, saidwheel being secured to the outer end of the shaft E, so that when saidwheel is rotated the cam-groove will act on the friction-wheel g andswing theouter end of the bar h toward and from the main body of themachine.

if is a bar, one end of which is pivoted to the jaw hflwhile the otherend projects through a slot, 9, formed in the bar h.

[L5 is a friction-wheel pivoted in the inner end of the bar h", saidfriction-wheel being impinged against by the eccentric h, which isbrought in contact with one of the edges of the cam-groove g thuspushing the bar-hforward and clamping the jaw k onto the iron bar h, aspring, h serving to draw the bar h back when not operated upon by thecamgroove, so as to hold the jaw h in its open position.

The eccentric cam h may be placed in a recess, h", in the top of theplate h, andwith a spring, h, for returning the cam h to its properposition; but in this construction it will be necessary to pivot the barh to the under side of the plate h. In operation this portion of themachine acts as follows: When the arm h is swung around from themachine, the jaw h is open and the metallic bar h is laid therein. Asthe arm h begins to return toward the machine the rod 71. is thrustforward and the bar clamped between the jaw h and the shoulder in theendof the bar it.

The action of the earn-groove g on the arm h is so timed that the end ofthe bar will be end of the bars, instead of by a continual pressure, asherein described, and such I esteem as coming within the spirit of myinvention.

The lower end of the metal bar may be perforated, so that the plasticmaterial can be pressed therethrough, so as to more firmly hold the samein the base; or barbs may be formed on the lower end of the bar foraccomplishing the same purpose.

Having thus described my invention, what I claim,and desire to secure byLetters Patent, 1s-

1. In a machine for pressing plastic material onto a post or bar, thecombination, with the variable mold-cavity having side plungers, an endplunger, and sliding blocks-to close one end thereof, of a feed-armoperated at intervals, as set forth.

2. A press for pressing plastic material onto a post or bar, said pressconsisting of two side plungers and an end plunger, said plungers beingoperated by cams and gearing, as described, whereby the plungers areoper-' ated simultaneously, as set forth.

3. In a press or machine of the character described, the variablemold-cavity and sliding blocks 0, for closing one end of the same, incombination with the side and end plungers operated by suitable means,as set forth. 4. In a press or machine of the character described, theshaft D provided with the pinion-wheel D*, adapted to engage themutilated gear-wheel D, and with the eccentric pinion-wheel D", incombination with the pinion-wheel D, cross-head D and plunger D, wherebysaid plunger is moved forward to press the end of the article, as setforth.

5. In a press or machine of the character described, the shaft F,provided with the pinion-wheel F and intermediate gearing adapted toengage with the mutilated gear-wheel F on the shaft E, and the crank-armF, secured to the other end of the shaft F, in combination with the linkf, rocking lever f, pitman fiand plunger D, whereby said plunger isthrust forward to eject the article from the machine, as

' set forth.

6. In a press or machine of the character described, the swinging arm h,provided with the movable jaw h", and devices, substantially asdescribed, for operating the arm and jaw, whereby one end of the bar his placed cen-

